Science Test 6

Match the systems

• Brain, nerves, spinal cord

• nervous system

• heart/blood vessels circulate blood

• circulatory system

• bones make blood cells & stores minerals

• skeletal system

Match the systems

• windpipe, lungs, diaphragm

• digestive system

• controls body movement

• respiratory system

• breakdown of food

• muscular system

The control center of your body is the

• backbone

• stomach

• heart

• brain

A group of cells working together is ​ (a)  

• tissue
• organ
• cells

Your ________ help keep dust and other objects out of your eyes

• eyelids

• pupils

• iris

The part of the eye that makes the picture you see come into focus

• lens

• eyelid

• iris

The nerve that carries the message of hearing to the brain

• optic

• auditory

• blood vessels

The layer of skin that you see is ​ (a)   ​

• epidermis
• dermis

How many chambers does the heart have?

• 1

• 2

• 3

• 4

How many lungs does the body have?

• 1

• 2

• 3

• 4